From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Date: Fri, 28 Jan 2022 11:10:10 +0000 (+0200)
Subject: ARM: dts: at91: sama7g5ek: disable slew rate for GMACs non MDIO pins
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=17a9f3f53d644d025a1a9e6d3a61fc71adf8b9d8;p=u-boot.git

ARM: dts: at91: sama7g5ek: disable slew rate for GMACs non MDIO pins

Non GMAC's MDIO pins should have slew rate disabled for R(G)MII modes. Set
them accordingly in DT.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Tested-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---

diff --git a/arch/arm/dts/sama7g5ek.dts b/arch/arm/dts/sama7g5ek.dts
index 6adb044258..ac6f23f64e 100644
--- a/arch/arm/dts/sama7g5ek.dts
+++ b/arch/arm/dts/sama7g5ek.dts
@@ -125,7 +125,9 @@
 	#address-cells = <1>;
 	#size-cells = <0>;
 	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_gmac0_default &pinctrl_gmac0_txc_default>;
+	pinctrl-0 = <&pinctrl_gmac0_default
+		     &pinctrl_gmac0_mdio_default
+		     &pinctrl_gmac0_txc_default>;
 	phy-mode = "rgmii-id";
 	status = "okay";
 
@@ -138,7 +140,7 @@
 	#address-cells = <1>;
 	#size-cells = <0>;
 	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_gmac1_default>;
+	pinctrl-0 = <&pinctrl_gmac1_default &pinctrl_gmac1_mdio_default>;
 	phy-mode = "rmii";
 	status = "okay";
 
@@ -235,14 +237,20 @@
 			 <PIN_PA15__G0_TXEN>,
 			 <PIN_PA30__G0_RXCK>,
 			 <PIN_PA18__G0_RXDV>,
-			 <PIN_PA22__G0_MDC>,
-			 <PIN_PA23__G0_MDIO>,
 			 <PIN_PA25__G0_125CK>;
+		slew-rate = <0>;
+		bias-disable;
+	};
+
+	pinctrl_gmac0_mdio_default: gmac0_mdio_default {
+		pinmux = <PIN_PA22__G0_MDC>,
+			 <PIN_PA23__G0_MDIO>;
 		bias-disable;
 	};
 
 	pinctrl_gmac0_txc_default: gmac0_txc_default {
 		pinmux = <PIN_PA24__G0_TXCK>;
+		slew-rate = <0>;
 		bias-pull-up;
 	};
 
@@ -254,8 +262,13 @@
 			 <PIN_PD25__G1_RX0>,
 			 <PIN_PD26__G1_RX1>,
 			 <PIN_PD27__G1_RXER>,
-			 <PIN_PD24__G1_RXDV>,
-			 <PIN_PD28__G1_MDC>,
+			 <PIN_PD24__G1_RXDV>;
+		slew-rate = <0>;
+		bias-disable;
+	};
+
+	pinctrl_gmac1_mdio_default: gmac1_mdio_default {
+		pinmux = <PIN_PD28__G1_MDC>,
 			 <PIN_PD29__G1_MDIO>;
 		bias-disable;
 	};